Moisture-proof breathable valve bag

By using a support frame and screw design to tighten the valve bag, combined with silicone moisture absorption and ventilation holes, the problem of the valve bag collapsing and deforming after the material is reduced is solved, achieving a stable seal and moisture-proof effect.

CN224278179UActive Publication Date: 2026-05-26JIANGXI XINMINGFENG PACKAGING TECH CO LTD
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Patent Information

Application Number
CN202520897802.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-05-26
Estimated Expiration
2035-05-08

AI Technical Summary

Technical Problem

The existing valve bag lacks support when the material is reduced, and is prone to softening and deformation, resulting in a decrease in sealing performance, allowing external moisture and impurities to seep in and affecting the moisture-proof effect.

Method used

The design incorporates a support frame, a two-way screw, and a connecting block. The rotating screw moves the connecting block to tighten the top of the valve pocket. It combines silicone to absorb moisture, breathable holes, and an aluminum-coated film to isolate water vapor, while graphene is used to enhance moisture resistance.

Benefits of technology

It effectively prevents the valve pocket from collapsing, maintains sealing performance, prevents moisture from entering, and improves breathability and moisture-proof effect.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model provides a moisture-proof breathable valve bag, which relates to the technical field of valve bags and comprises a valve bag, a base is fixedly mounted at the bottom of the outer surface of the valve bag, two support frames are fixedly mounted on each of two sides of the outer surface of the base, and two bidirectional screws are rotatably mounted at the other ends of the four support frames. Four connecting blocks are fixedly installed on the upper sides of the outer surfaces of the two-way screw rods, the four connecting blocks are installed on the outer surfaces of the two-way screw rods in a threaded mode correspondingly, two sliding rods are arranged at the bottoms of the four connecting blocks in a sliding mode, and the two ends of the two sliding rods are fixedly installed on the outer surfaces between the four supporting frames correspondingly; the four connecting blocks can be driven to move through rotation of the two-way screw rods due to the fact that the four connecting blocks are fixedly installed at the four corners of the valve bag correspondingly, the four connecting blocks can be driven to move through rotation of the two-way screw rods due to the fact that the four connecting blocks are fixedly installed at the four corners of the valve bag correspondingly; therefore, the top of the valve bag can be tightened by moving the connecting blocks towards the two sides, then the feeding port of the valve bag can be closed, and the situation that the valve bag is soft and collapsed is avoided.
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